Azurite with Cerussite

I bought this specimen from Scott Werschky back in 2012 at the Denver Merchandise Mart. He had about 15 specimens from a pocket that had crude grey Cerussites mingled with the Azurite clusters. Some of the Azurite surfaces have a matt non lustrous surface, and it was speculated the Cerussite may be included in the Azurites. The non-affected areas have superb luster. A style many of you Tsumeb collectors likely do not have.

Locality: Tsumeb Mine, Otjikoto Region, Tsumeb Namibia

Composition: copper carbonate and lead carbonate